Consultancy on a new coffee grinder

We search an professional that is an expert on:
– electric coffee grinders
– coffee grinder burrs

We have developed a coffee grinder. From scratch. A new one. But we have problem with the grinding. it doesn’t grind good. And we have developed / designed our burrs. But we think they are 100% too.

So we need someone with coffee grinders expert that can look to our design, to our prototype, to our drawings, and advices us. Where needed change the drawings etc.